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Fofino [41]
3 years ago
14

Help me ................. please

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
8 0
3.5

20.25-11.50=8.75 / 2.50=3.5
Stolb23 [73]3 years ago
6 0

Answer:

3 and a half hours                   the assignment will probably want you to put 3.5

Step-by-step explanation:

20.25-11.50=8.75

8.75÷2.50=3.5

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To show a repeating decimal, a bar is placed over the repeating pattern. <br> True or False
solniwko [45]

Answer:

True

Step-by-step explanation:

Example: 1.666666...

In that case, place the bar on top of the last 6

4 0
3 years ago
Points A, B, and C, form a triangle. The distance between point A and point B is 15 yards. The distance between point B and poin
NARA [144]

The direct distance form A to C is represented by the inequality

AC < 40 yards.

<h3>What is a Triangle ?</h3>

A triangle is a polygon with three sides , three vertices and three angles.

It is given that

Distance form point A to B is 15 yards

Distance form point B to C is 25 yards.

Distance AC = ?

In a Triangle the sum of two sides is always greater than the third side.

Therefore

AC < 15 +25

AC < 40 yards.

Therefore the direct distance form A to C is represented by the inequality AC < 40 yards.

To know more about Triangle

brainly.com/question/2773823

#SPJ1

8 0
2 years ago
You have been saving nickels, dimes, and quarters in a jar for about a year. You decide to see how much money you've saved up. W
anyanavicka [17]

Answer:

x = number of nickels = 127

y = number of dimes = 156

z = number of quarters = 78

Step-by-step explanation:

Let

x = number of nickels

y = number of dimes

z = number of quarters

Total worth of the coins = $41.45

Total number of coins = 361

x + y + z = 361 (1)

dime = $0.1,

nickel = $0.05

quarter = $0.25

0.05x + 0.1y + 0.25z = 41.45 (2)

twice as many dimes as quarters.

y = 2z

Substitute y = 2z into (1) and (2)

x + 2z + z = 361

0.05x + 0.1(2z) + 0.25z = 41.45

x + 3z = 361

0.05x + 0.2z + 0.25z = 41.45

x + 3z = 361 (3)

0.05x + 0.45z = 41.45 (4)

Multiply (4) by 20

x + 3z = 361 (3)

x + 9z = 829 (5)

Subtract (3) from (5)

9z - 3z = 829 - 361

6z = 468

Divide both sides by 6

z = 468 / 6

= 78

z= 78

Recall,

y = 2z

= 2(78)

= 156

y = 156

Substitute the value of y and z into

x + y + z = 361

x + 156 + 78 = 361

x + 234 = 361

x = 361 - 234

= 127

x= 127

x = number of nickels = 127

y = number of dimes = 156

z = number of quarters = 78

6 0
3 years ago
Okay, can someone private message me and help me with some math problems pleaseeeeeee????? Thank you!
Marizza181 [45]
I can help you, as long as it's something I've already learned so as long as it anything less than stats. I'll pm you.
7 0
3 years ago
WORTH 100 POINTS
guajiro [1.7K]

Answer:

The problem does not work.

Step-by-step explanation:

The plane with speed of 31 mph will cover 640 miles in \frac{640}{31} = 20.64 hours.

Now, it burns 5 gallons of gas every 3 minutes i.e. 0.05 hours.

So, it will burn in 20.64 hours \frac{5 \times 20.64}{0.05} = 2064 gallons.

Now, the helicopter with speed of 45 mph will cover 640 miles in \frac{640}{45} = 14.22 hours.

Now, it burns 7 gallons of gas every 5 minutes i.e. 0.083 hours.

So, it will burn in 14.22 hours \frac{7 \times 14.22}{0.083} = 1194.48 gallons.

But both of them starts with only 80 gallons of fuel.

Therefore, the problem does not work. (Answer)

4 0
4 years ago
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